The 9011690 spherical locking valve from BEZARES S.A. combines manual lever operation with an available hydraulic pilot for directional control in mobile hydraulics — tipping trailers, crane stabilizers, and multi-section hydraulic manifolds where flow must be directed or locked positively. The spherical ball design provides full-bore flow with low pressure drop when open and leak-tight shut-off when closed.

How does pressure rating relate to port size?

The 1/2" BSP version handles up to 500 bar — among the highest pressure ratings for a manually actuated ball valve in its size class. The 3/4" version is rated to 400 bar, and the 1" to 350 bar. This inverse relationship between port diameter and pressure capacity reflects the increasing surface area the ball and seals must hold back. Select the smallest port that meets your flow requirement to maximize pressure margin.

What makes a spherical locking valve different from a standard ball valve?

A standard ball valve opens or closes a single flow path. The 9011690 adds a locking mechanism integrated into the spherical ball that can isolate, divert, or hold a hydraulic load in position — functioning as a directional control element rather than just a shut-off device. It is available in 2-way and 3-way configurations for single-acting (spring-return) and double-acting cylinders respectively.

Dimensional Reference